Diffusion Tensor Imaging in brain tumors: A study on gliomas and metastases.

Purpose: To explore the role of Diffusion Tensor Imaging in preoperative glioma grading, as well as in differentiation between gliomas and metastatic brain tumors. We measured diffusion tensor variables in enhancement and edema regions, which were compared between the different subject groups.

Materials And Methods: We performed DTI in 48 patients (11 Low Grade Gliomas, 27 High Grade Gliomas, 10 Single Metastatic brain tumors).

Successful management of bulky osseous metastasis of renal cell carcinoma with selective arterial embolization and radiofrequency ablation: a case report.

The case of a 64-year-old male patient who presented with a bulky osseous tumor metastasis from renal cell carcinoma is reported. The metastatic lesion extended from the acetabulum of the left iliac bone into the iliosacral joint.Treatment plan included selective arterial embolization followed by transdermal radiofrequency ablation, followed by consolidation irradiation.

Spontaneous intracranial hypotension: clinical and neuroimaging findings in six cases with literature review.

Spontaneous intracranial hypotension (SIH) is an uncommon but increasingly recognized syndrome. Orthostatic headache with typical findings on magnetic resonance imaging (MRI) are the key to diagnosis. Delayed diagnosis of this condition may subject patients to unnecessary procedures and prolong morbidity.

Ruptured aneurysm of a persistent primitive hypoglossal artery treated by endovascular approach--case report and literature review.

Background: A persistent PHA is the second most common of the embryonic carotid-basilar anastomoses that fail to regress in the embryo. The fact that PHA often is functionally a single artery providing blood to the posterior circulation poses challenging therapeutic problems in case of an aneurysm located on the PHA.

Case Description: A 46-year-old woman presented with SAH due to a large ruptured aneurysm of the left PHA.

Comparative evaluation of 99mTc-depreotide and 201Tl chloride single photon emission tomography in the characterization of pulmonary lesions.

Purpose: To compare (99m)Tc-depreotide and (201)Tl chloride SPET in the characterization of pulmonary lesions.

Methods: Fifty-seven pulmonary lesions from 33 patients suspected of malignancy in computed tomography, were assessed by (99m)Tc-depreotide and (201)Tl early and delayed SPET imaging. Images were visually assessed and the tumour-to-normal (T/N) lung activity ratio for early (ER) and delayed (DR) scans and the retention index (RI), were calculated in every lesion.

Aggressive angiomyxoma of the vulva extending into the pelvis: report of two cases.

Aggressive angiomyxoma is a rare soft-tissue neoplasm found mainly in the female pelvis. Approximately 130 cases have been reported in the literature to date. In most cases treatment consists of surgical resection, but local recurrence rates remain high (36-72%).

Imaging of peripheral nerve sheath tumors with pathologic correlation: pictorial review.

Peripheral neurogenic tumors include neurilemoma, neurinoma, and malignant peripheral nerve sheath tumors. All neurogenic tumors share common imaging features. Although differentiation between them is difficult, neurogenic origin can be suggested from their imaging appearances, including fusiform shape, relation to the nerve, "split-fat" sign, associated muscle atrophy and intrinsic imaging characteristics including "target sign" as well as from lesion location along a typical nerve distribution.

Value of MRI in the diagnosis of non-clival, non-sacral chordoma.

Objective: To determine the MR features of non-sacral, non-clival chordoma and to describe a MR prototype of the lesion.

Design And Patients: We reviewed the MR findings of 10 patients with a histologically proven chordoma (6 cervical spine, 1 thoracic spine, 3 lumbar spine). There were three female and seven male patients.

Cytomegalovirus-associated transverse myelitis in a non-immunocompromised patient.

Design: Single case report.

Objective: To report a rare case of cytomegalovirus (CMV)-associated transverse myelitis (TM) in the immunocompetent host.

Settings: Collaboration between a Neurology and Radiology University Department in Greece and a Molecular Virology Department in Cyprus.

Reversible brain atrophy and subcortical high signal on MRI in a patient with anorexia nervosa.

Anorexia nervosa (AN), usually seen in young girls, is characterised by severe emaciation induced by self-imposed starvation. Enlargement of the ventricular system and sulci has been reported, as has high signal on T2-weighted images. We present a case with atrophic changes and high signal on T2-weighted images, which resolved completely following weight gain.

Sublingual hypoglossal neurilemmoma. Case report.

Neurilemmomas of the peripheral segment of the hypoglossal nerve are extremely uncommon neoplasms. A rare case of hypoglossal neurilemmoma located in the sublingual space is reported and the differential diagnosis of sublingual mass lesions is discussed.

[Boerhaave syndrome: a rare cause of acute thoracic pain].

In a 74-year old female patient suffering from acute thoracic pain, vomiting, and dyspnoea, the diagnosis of Boerhaave's syndrome was made. After medical treatment the patient was dismissed in a sufficiently satisfactory condition. If symptoms like vomiting, severe thoracic pain, pneumomediastinum, pneumothorax or hydropneumothorax on the left side occur, a rupture of the oesophagus should be taken into account especially in case of abuse of alcohol.

MRI appearance of pulmonary Wegener's granulomatosis with concomitant splenic infarction.

The MRI appearance of pulmonary lesions in a patient with Wegener's granulomatosis is presented. Pulmonary involvement was characterized by multiple solid and cavitated nodules connected to vessels. Transbronchial biopsy demonstrated typical findings of granuloma.

Albendazole treatment of cerebral hydatid disease: evaluation of results with CT and MRI.

We report a case of cerebral hydatid disease demonstrated by CT and MRI, treated with albendazole. Follow-up showed complete disappearance of the cysts with residual focal calcification on CT and presumed gliosis on MRI.

[Tracheobronchomegaly (Mounier-Kuhn syndrome): roentgen findings and tracheal stent instrumentation].

Tracheobronchomegaly is a rare disorder of the lower respiratory tract characterised by marked dilatation of the trachea and the central bronchi associated with recurrent respiratory tract infections. However, some patients with tracheobronchomegaly are not detected because the symptoms are overlooked if chest radiographs alone are used for diagnosis. We encountered two cases of tracheobronchomegaly that were not diagnosed by chest radiographic examinations but were shown clearly with CT.